how old are these primers???

[Nitescout]

I recently found an old stash of primers. they are CCI #200 white/green cover with white plastic tray, stainless colored cup...dull yellow or straw colored mixture.

I have tried a few...they work fine.

 

[F. Guffey]

I believe someone believed his primers were RCBS because the box was green and white. I have primers I dug out that are in a green and white box. My CCI primers that are not RCBS came from the early ‘70s. I had not thought about these primers for years and could not remember why I keep them. My CCI primers that came in the white and green box got soaked with case lube many years ago. Point? I am going to seat the primers in a few cases to determine if they work. I will test them in one of my rifles with a killer firing pin.

 

[454PB]

As long as they are still in the original packaging, they should be fine. I'm using primers that were made in the mid 70's and have had no problems at all.

 

[Nitescout]

thanks for the replies,

I got lucky and found in my old notebook, I used these primers dec. 16, 1975

on that date, I loaded some R-P 22-250 rem. cases with 38.0 grs of IMR 4350 behind some Hornady 55 gr. soft points.

That`s the first time I started keeping track of which primer I used in a given load.

 

[jmorris]

The oldest I have are CCI 350's, they are over 25 years old and still work fine. They have been stored in a temperature controlled environment.

Packaging looks like this (top right) on there side, side one against another in rows of ten.